Stash tabs from POE2 to POE1

There are like a hundred threads asking if the stash tabs will transfer to POE2 and we already have an answer on that, my question goes the other way around, will tabs purchased in POE2 be available in POE1?

Yes because both games share MTX, if you buy an MTX in PoE that is in PoE2 then it will work in PoE2.

But if you bought an MTX in PoE2 that requires a PoE2 only weapon to use it obviously wouldn't work in PoE1.

Just like how Blight Stash tabs aren't in PoE2 because there is no Blight mechanic currently.

So the opposite would occur, PoE2 stash tabs will work in PoE as long as that mechanic exists in PoE.